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This sequence was similar to the 2019 earthquakes in having two main shocks: an M L 5.4 earthquake on August 17 located 11 miles north of Ridgecrest, [131] and an M L 5.8 earthquake on September 20, located about a mile south-southwest of the first earthquake. [132] Another shock on the 24th was M L 4.9. Another similarity with the 2019 events ...
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Seismic intensity scales categorize the intensity or severity of ground shaking (quaking) at a given location, such as resulting from an earthquake.They are distinguished from seismic magnitude scales, which measure the magnitude or overall strength of an earthquake, which may, or perhaps may not, cause perceptible shaking.
This is in contrast with the seismic magnitude usually reported for an earthquake. Magnitude scales measure the inherent force or strength of an earthquake – an event occurring at greater or lesser depth. (The "M w" scale is widely used.) The MM scale measures intensity of shaking, at any particular location, on the surface.
Magnitude is an estimate of the relative "size" or strength of an earthquake, and thus its potential for causing ground-shaking. It is "approximately related to the released seismic energy." [1] Intensity refers to the strength or force of shaking at a given location, and can be related
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Due to the remoteness of the area, there were few sensor stations near the earthquake and this resulted in the M W 6.0 earthquake incorrectly being split into "phantom quakes" by the system – a M W 4.8 near Lee Vining, M W 4.8 near Stockton, and M W 4.3 near Mammoth Lakes. Additionally, it took the system 25 seconds to declare an earthquake ...
The Richter scale [1] (/ ˈ r ɪ k t ər /), also called the Richter magnitude scale, Richter's magnitude scale, and the Gutenberg–Richter scale, [2] is a measure of the strength of earthquakes, developed by Charles Richter in collaboration with Beno Gutenberg, and presented in Richter's landmark 1935 paper, where he called it the "magnitude scale". [3]